[Hypersensitivity pneumonitis caused by Mucor species in a cork worker].

Suberosis is a type of hypersensitivity pneumonitis caused by exposure to cork proteins and molds such as Aspergillus fumigatus and Penicillium frequentans. We present the case of a man with suberosis caused by Mucor species, a mold that has been rarely reported to cause hypersensitivity pneumonitis. Furthermore, the patient had symptoms and lung function tests indicating bronchial obstruction-an atypical presentation of hypersensitivity pneumonitis. No imaging abnormalities were observed. A diagnosis was made on the basis of bronchoalveolar lavage and transbronchial biopsy findings. Mucor species was identified as the causative agent using a specific bronchial challenge test.